1. Species Actumnus amirantensis Rathbun, 1911
2. Species Actumnus antelmei Ward, 1942
3. Species Actumnus arbutum Alcock, 1898
4. Species Actumnus asper (Rüppell, 1830)
5. Species Actumnus calypso (Herbst, 1801)
6. Species Actumnus davaoensis Ward, 1941
7. Species Actumnus digitalis (Rathbun, 1907)
8. Species Actumnus dorsipes (Stimpson, 1858)
9. Species Actumnus elegans De Man, 1887
10. Species Actumnus fissifrons Alcock, 1898
11. Species Actumnus forficigerus (Stimpson, 1858)
12. Species Actumnus globulus Heller, 1860
13. Species Actumnus granotuberosus Garth & Kim, 1983
14. Species Actumnus griffini Takeda & Webber, 2006
15. Species Actumnus intermedius Balss, 1922
16. Species Actumnus margarodes MacGilchrist, 1905
17. Species Actumnus marissinicus Takeda & Kim, 1977
18. Species Actumnus miliaris A. Milne-Edwards, 1865
19. Species Actumnus ngankeeae Takeda & Komatsu, 2024
20. Species Actumnus obesus Dana, 1852
21. Species Actumnus setifer (De Haan, 1835)
22. Species Actumnus setosiareolatus Takeda, 1977
23. Species Actumnus similis Takeda & Miyake, 1969
24. Species Actumnus simplex Rathbun, 1911
25. Species Actumnus squamosus (De Haan, 1835)
26. Species Actumnus taiwanensis Ho, Yu & Ng, 2001
27. Species Actumnus targionii Cano, 1889
28. Species Actumnus tesselatus Alcock, 1898
29. Species Actumnus tsurukaii Takeda & Komatsu, 2017
30. Species Actumnus uformis Takeda & Komatsu, 2017
31. Species Actumnus bonnieri Nobili, 1905 accepted as Actumnus asper (Rüppell, 1830) (unaccepted > junior subjective synonym)
32. Species Actumnus carinatus Bouvier, 1914 accepted as Actumnus digitalis (Rathbun, 1907) (unaccepted > junior subjective synonym)
33. Species Actumnus changensis Rathbun, 1909 accepted as Cryptopilumnus changensis (Rathbun, 1909) (unaccepted > superseded combination)
34. Species Actumnus kingstoni Rathbun, 1923 accepted as Pilumnus kingstoni (Rathbun, 1923) (unaccepted > superseded combination)
35. Species Actumnus laevigatus Rathbun, 1911 accepted as Pilumnus laevigatus (Rathbun, 1911) (unaccepted > superseded combination)
36. Species Actumnus nudus A. Milne-Edwards, 1867 accepted as Sphaerozius scaber (Fabricius, 1798) (unaccepted > junior subjective synonym)
37. Species Actumnus parvula A. Milne-Edwards, 1869 accepted as Actumnus parvulus A. Milne-Edwards, 1869 accepted as Coralliope parvula (A. Milne-Edwards, 1869) (unaccepted > incorrect grammatical agreement of specific epithet)
38. Species Actumnus parvulus A. Milne-Edwards, 1869 accepted as Coralliope parvula (A. Milne-Edwards, 1869) (unaccepted > superseded combination)
39. Species Actumnus pugilator A. Milne-Edwards, 1873 accepted as Bathypilumnus pugilator (A. Milne-Edwards, 1873) (unaccepted > superseded combination)
40. Species Actumnus tomentosus Dana, 1852 accepted as Actumnus setifer (De Haan, 1835) (unaccepted > junior subjective synonym)
41. Species Actumnus verrucosus Henderson, 1893 accepted as Actumnus calypso (Herbst, 1801) (unaccepted > junior subjective synonym)

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